PROBLEM TO BE SOLVED: To provide a blocking pressure calibration method of a medical liquid pump in which blocking pressure for controlling is individually established to a chemical and a liquid channel which are used, and the blocking pressure can be managed in high accuracy, and which can assure safety.SOLUTION: The blocking pressure calibration method includes: a channel setting step S102 which establishes a chemical channel from a chemical pump to a patient a chemical flow step S108 which makes a chemical flow to the chemical channel by a predetermined flow rate before medicating a patient with a chemical a flow pressure measurement step S109 which meters the flow pressure of a chemical in the chemical flow step and a blocking pressure setting stroke S112 for controlling which adds the pressure value established beforehand to the flow pressure obtained in the flow pressure measurement step, and establishes the blocking pressure for controlling, and is configured such that after establishing the blocking pressure for controlling, the administration of a chemical to a patient is started, and when the flow pressure metered during the chemical administration exceeds the blocking pressure for controlling, an alarm output is generated and/or the chemical pump is stopped.COPYRIGHT: (C)2012,JPO&INPIT【課題】使用する薬液や液体流路に対して制御用の閉塞圧を個別に設定して、閉塞圧を精度高く管理することができるとともに、安全性を確保できる医療用薬液ポンプの閉塞圧較正方法を提供する。【解決手段】薬液ポンプから患者に到る薬液流路を設定する流路設定行程S102と、薬液を患者に投与する前に、薬液を所定の流量で薬液流路に流動させる薬液流動行程S108と、薬液流動行程中に、薬液の流動圧力を計測する流動圧力計測行程S109と、流動圧力計測行程において得られた流動圧力と、あらかじめ設定された圧力値とを加えて制御用閉塞圧力を設定する制御用閉塞圧力設定行程S112とを含み、制御用閉塞圧力を設定した後に、患者に対する薬液の投与を開始するとともに、薬液投与中に計測された流動圧力が、制御用閉塞圧力を越えた場合に、警報出力を発生させ及び/又は薬液ポンプを停止させるように構成されている。【選択図】図5
